The United States and Europe rules supreme over the current music trends, while other parts of the world, including China, mostly follow their footsteps.
美国和欧洲于现在的音乐趋势有绝对统治权，而其它地方，包括中国，大致上在跟随他们的脚步。
Current progresses in projection displays including projection CRTs and various light valves are summarized. Future trends and mutual competitions are commented as well.
本文介绍各种投影显示技术的目前水平与发展趋势，对于投影CRT与各种光阀的特点、竞争关系作了评述。
Current progresses in projection displays including projection CRTs and various light valves are summarized. Future trends and mutual competitions are commented as well.
本文介绍各种投影显示技术的目前水平与发展趋势，对于投影CRT与各种光阀的特点、竞争关系作了评述。
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